栏杆 (lángān) means "railing" or "guardrail" and refers to a barrier structure typically found along staircases, balconies, or the edges of sports fields. It is a compound noun combining 栏 (barrier) and 杆 (pole), and appears frequently in news contexts describing crowd incidents.
阳台的栏杆有点松了,你小心一点。
Yángtái de lángān yǒudiǎn sōng le, nǐ xiǎoxīn yìdiǎn.
The railing on the balcony is a bit loose; be careful.
他靠在桥边的栏杆上看风景。
Tā kào zài qiáo biān de lángān shàng kàn fēngjǐng.
He leaned on the railing by the bridge and admired the view.
体育场的栏杆被球迷挤坏了。
Tǐyùchǎng de lángān bèi qiúmí jǐ huài le.
The railings at the stadium were damaged by the crush of fans.